20545462 has 8 divisors (see below), whose sum is σ = 35220816. Its totient is φ = 8805192.

The previous prime is 20545433. The next prime is 20545477. The reversal of 20545462 is 26454502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20545462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733753 + ... + 733780.

It is an arithmetic number, because the mean of its divisors is an integer number (4402602).

Almost surely, 2^20545462 is an apocalyptic number.

20545462 is a deficient number, since it is larger than the sum of its proper divisors (14675354).

20545462 is a wasteful number, since it uses less digits than its factorization.

20545462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467542.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20545462 is about 4532.7102267849. The cubic root of 20545462 is about 273.8873477979.

Adding to 20545462 its reverse (26454502), we get a palindrome (46999964).

The spelling of 20545462 in words is "twenty million, five hundred forty-five thousand, four hundred sixty-two".